<template>
    <!-- 头部 -->
    <header class="header">
      <!-- 头部的第一行 -->
      <div class="top">
        <div class="container">
          <div class="loginList">
            <p>尚品汇欢迎您！</p>
            <p>
              <span>请</span>
              <router-link to="/login">登录</router-link>
              <router-link to="/register" class="register">免费注册</router-link>
              <router-link to="/test" class="register">测试</router-link>
            </p>
          </div>
          <div class="typeList">
            <a href="###">我的订单</a>
            <a href="###">我的购物车</a>
            <a href="###">我的尚品汇</a>
            <a href="###">尚品汇会员</a>
            <a href="###">企业采购</a>
            <a href="###">关注尚品汇</a>
            <a href="###">合作招商</a>
            <a href="###">商家后台</a>
          </div>
        </div>
      </div>
      <!--头部第二行 搜索区域-->
      <div class="bottom">
        <h1 class="logoArea">
          <router-link @click.native="keyword=''" class="logo" title="尚品汇" to="/" >
            <img src="./images/logo.png" alt="" />
          </router-link>
        </h1>
        <div class="searchArea">
          <form @submit.prevent="toSearch" class="searchForm">
            <input
              v-model="keyword"
              type="text"
              id="autocomplete"
              class="input-error input-xxlarge"
            />
            <button @click="toSearch" class="sui-btn btn-xlarge btn-danger" type="button">
              搜索
            </button>
          </form>
        </div>
      </div>
    </header>
  </template>
  
  <script>
  export default {
    name: "Header",
    data(){
      return {
          keyword:""
      }
    },
    methods:{
      toSearch(){
        // // 方法一：  处理 编程式导航的跳转报错
        // this.$router.push("/search",()=>{})
        // this.$router.push("/search",()=>{},()=>{})

        // // 方法二：  处理 编程式导航的跳转报错
        // this.$router.push("/search").catch(()=>{})

        // 调用增强后的函数
        this.$router.replace("/search")

        // 接收 地址栏 query 参数
        let {query}=this.$route;

        // 携带 关键字跳转至 search
        this.$router.push({
          path:"/search",
          query:{
            ...query,
            keyword:this.keyword || undefined
          }
        })
      }
    },
    mounted(){
      // 创建 自定义事件
      this.$bus.$on("getkeyword",()=>{
        this.keyword="";
      })
    },
    beforeDestroy(){
      this.$bus.$off("getkeyword")
    }
  };
  </script>
  
  <style lang="less" scoped>
  .header {
    & > .top {
      background-color: #eaeaea;
      height: 30px;
      line-height: 30px;
  
      .container {
        width: 1200px;
        margin: 0 auto;
        overflow: hidden;
  
        .loginList {
          float: left;
  
          p {
            float: left;
            margin-right: 10px;
  
            .register {
              border-left: 1px solid #b3aeae;
              padding: 0 5px;
              margin-left: 5px;
            }
          }
        }
  
        .typeList {
          float: right;
  
          a {
            padding: 0 10px;
  
            & + a {
              border-left: 1px solid #b3aeae;
            }
          }
        }
      }
    }
  
    & > .bottom {
      width: 1200px;
      margin: 0 auto;
      overflow: hidden;
  
      .logoArea {
        float: left;
  
        .logo {
          img {
            width: 175px;
            margin: 25px 45px;
          }
        }
      }
  
      .searchArea {
        float: right;
        margin-top: 35px;
  
        .searchForm {
          overflow: hidden;
  
          input {
            box-sizing: border-box;
            width: 490px;
            height: 32px;
            padding: 0px 4px;
            border: 2px solid #ea4a36;
            float: left;
  
            &:focus {
              outline: none;
            }
          }
  
          button {
            height: 32px;
            width: 68px;
            background-color: #ea4a36;
            border: none;
            color: #fff;
            float: left;
            cursor: pointer;
  
            &:focus {
              outline: none;
            }
          }
        }
      }
    }
  }
  </style>